The Chinese University of Hong Kong

Shenzhen Guanke Technologies Co., Ltd

Bgi Shenzhen

Huawei Technologies Co., Limited

Huawei Digital Power Technologies Co., Ltd.

Mgi Tech Co., Ltd.

Liang Wu

Hao Wu

Lei Zhang

Xin Liu

Qing Lan

Yong Yang

Xiuqiang Xu

Ligen Liu

Zhengwei Gong

Wei He

Xun Xu

Zehui Kang

Xuren Qiu

Mingyue Wang

Shiyuan Zheng

Shuangshuang Xing

Shengyong Dai

Xiaoping Wu

Chen Yu

Zuwei He

Qinwan Gong

Hongbo Liu

Li Jin

Gun Yang

Jiangshan Xu

Yihui Wang

Chuanyu Liu

Yue Yuan

Yifu Li

Longqi Liu

Zhouchun Shang

Rong Li

Yongping Zhu

A bulb lamp, including a lamp shell, a light-transmitting cover, a power panel, a lamp panel, at least one illumination module and at least one sterilization module. An annular first step extends inside the peripheral side of the lamp shell, and a plurality of air inlets are provided above the first step; the light-transmitting cover is connected to the bottom ring side of the lamp shell and surrounds the lamp shell to form an accommodating cavity, the bottom of the light-transmitting cover is provided with at least one air outlet in communication with the accommodating cavity, and the accommodating cavity is in communication with the air inlet; the power panel is arranged in the accommodating cavity; the lamp panel is arranged in the accommodating cavity and is lower than the first step, and an installation space is formed between the lamp panel and the first step.

Bulb lamp

A method for constructing a library of cell-free DNAs in body fluids, comprising directly acting a transposase or an endonuclease on a body fluid sample, fragmenting the cell-free DNAs within, and performing amplification to obtain a library. Also provided is a test kit using the present method for prenatal diagnosis or early detection of cancer.

Method for constructing library of cell-free DNAs in body fluids and application thereof

A harmonic oscillator realizing harmonic tuning based on harmonic current selection is provided. The harmonic oscillator includes a first MOS transistor M, a second MOS transistor M, a first inductor L, a second inductor L, a third inductor L, a fourth inductor L, a fifth inductor L, a first variable capacitor C, a second capacitor C, a first fixed capacitor C, a second fixed capacitor Cand a switched capacitor array SCA. By suppressing a second harmonic current and promoting a third harmonic current, the invention avoids the design complexity caused by synchronous tuning of two types of harmonic impedances. By suppressing a second harmonic current and promoting a third harmonic current, the design complexity caused by synchronous tuning of two types of harmonic impedances is avoided.

Harmonic oscillator realizing harmonic tuning based on harmonic current selection

A blocking signal cancellation low noise amplifier system includes a first low noise amplifier, a second low noise amplifier, a blocking signal extraction and bias generation circuit, a bias switching circuit, and a bias switching signal generating circuit. The first low noise amplifier is used for dynamic input matching, and the first low noise amplifier receives an input signal and outputs it after amplifying. The blocking signal extraction and bias generation circuit is used to extract a blocking signal from the output signal of the first low noise amplifier, and output a DC voltage signal. The bias switching circuit is used to switch the first low noise amplifier between a blocking mode and a small signal mode. The bias switching signal generating circuit is used to compare the DC bias voltage signal Vwith a preset reference voltage signal V.

Blocking signal cancellation low noise amplifier system

A push-push frequency doubler based on complementary transistors is provided. The first differential amplifier circuit receives a differential input signal having an initial frequency, and amplifies the amplitude of the second harmonic of the differential input signal to obtain a first signal. The second differential amplifier circuit receives the differential input signal with the initial frequency and amplifies the amplitude of the second harmonic of the differential input signal to obtain the second signal. Where, the first signal and the second signal are a set of differential signals with the same amplitude and a phase difference of 180&#xb0;. The output load circuit extracts the second harmonic signal in the first and second signal respectively to obtain and output a pair of differential output signal with first output frequency whose value is twice of the initial frequency. As a result, the frequency doubler with differential output signal is realized.

Push-push frequency doubling scheme and circuit based on complementary transistors

Provided are a transmission line module for a rotary traveling wave oscillator (RTWO) and a design method thereof. The transmission line module includes a substrate. The upper surface of the substrate is provided with a grounding metal layer, that is, a metal ground. The metal ground is provided with a rectangular groove. The rectangular groove penetrates front and rear sides of the metal ground along a length direction of the rectangular groove. The thickness of the rectangular groove is the same as the thickness of the metal ground. The rectangular groove is filled with a silicon dielectric plate that has the same shape and size as the rectangular groove. The upper surface of the silicon dielectric plate is provided with two parallel transmission lines along the length direction of the rectangular groove.

Transmission line module for rotary traveling wave oscillator and design method thereof

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Shenzhen, China

Liang Wu